abstract
aluminum
backdrop
background
black
blue
chips
closeup
curled
curly
cut
cutting
detail
engineering
environment
fabrication
filings
gray
heap
heavy
industrial
industry
iron
junk
lathe
manufacturing
material
metal
metallic
metalwork
pattern
pile
production
recycle
recycling
scrap
sharp
shavings
shiny
silver
spiral
steel
swarf
technology
texture
textured
trash
wallpaper
waste
white